5of28 explores time.

Does sometimes it seem as if the school day will never end? If you think it takes a long time for school to let out, imagine how long it must take for a mountain to form or an ocean to dry up. It takes millions or even billions of years. The long periods of time that it takes for major changes to happen on Earth are called geologic time. Geologic time stretches from when the Earth first formed until today.

How do you count geologic time?

Geologists (scientists who study Earth) have special names for periods of time on Earth. They name stages in the history of Earth just as you name stages in the life of a person. You say a person was a baby and then a child and then a teenager and then a grown-up. Geologists use the words eon, era, period, and epoch when they talk about the stages of Earth.

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Phoebe6 reports on a beloved endangered species.

A few weeks ago in my science class, my teacher had us watch a movie about endangered species. I was shocked to see one of my favorite animals on the endangered species list, the panda. I decided to do some research of my own and inform you all about the dangers faced by these rare animals.

The panda is believed to have come into existence about 600,000 years ago. The pandas populated what is now eastern China, Myanmar, and North Vietnam. But as the human population and industrial activity has increased in China, the panda population has decreased immensely. Today, the panda's natural habitat is limited to just the mountains and bamboo forests of southwestern China.

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